Version Control With Subversion Source

* src/en/book/ch02.xml
(svn.basic.vsn-models.copy-merge.sb-1): Moved period outside
parentheses.

* src/en/book/ch05.xml
(svn.reposadmin.create.hooks): Replace "" with <quote></quote>.
(svn.reposadmin.maint.tk.svnadmin): Replace "lstxns" with "lslocks" in
varlistentry about svnadmin subcommands.

* src/en/book/ch06.xml
(svn.serverconfig.netmodel.credcache): Replace [...] with … in
<screen> example.

* src/en/book/ch09.xml
(svn.ref.svn.c.add): Replace [...] with … in <screen> example.